Finding the Fourth Proportional to 38,870.96, 58,332.18 and 21,353

Step by Step Solution

1. Step 1: Write the proportion equation
   38,870.96 : 58,332.18 = 21,353 : x
2. Step 2: Convert to fraction form
   38,870.96/58,332.18 = 21,353/x
3. Step 3: Cross multiply
   38,870.96x = 58,332.18 × 21,353
4. Step 4: Simplify right side
   38,870.96x = 1,245,567,039.54
5. Step 5: Solve for x
   x = 1,245,567,039.54/38,870.96
6. Step 6: Final answer
   x = 32,043.64